[INFO] cloning repository https://github.com/kstrckr/stm32f3disco_mvp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kstrckr/stm32f3disco_mvp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkstrckr%2Fstm32f3disco_mvp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkstrckr%2Fstm32f3disco_mvp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bae3739d066366648a1585b71661c2bbcb217991
[INFO] checking kstrckr/stm32f3disco_mvp against master#53709aedba198874ee50769f19f1e9ab00798bb5 for pr-108221
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkstrckr%2Fstm32f3disco_mvp" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kstrckr/stm32f3disco_mvp on toolchain 53709aedba198874ee50769f19f1e9ab00798bb5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-6-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/kstrckr/stm32f3disco_mvp
[INFO] finished tweaking git repo https://github.com/kstrckr/stm32f3disco_mvp
[INFO] tweaked toml for git repo https://github.com/kstrckr/stm32f3disco_mvp written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kstrckr/stm32f3disco_mvp already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded stm32f3-discovery v0.6.0
[INFO] [stderr]   Downloaded cast v0.2.5
[INFO] [stderr]   Downloaded stm32-usbd v0.5.1
[INFO] [stderr]   Downloaded accelerometer v0.12.0
[INFO] [stderr]   Downloaded stm32f3xx-hal v0.6.1
[INFO] [stderr]   Downloaded switch-hal v0.3.2
[INFO] [stderr]   Downloaded lsm303agr v0.1.1
[INFO] [stderr]   Downloaded stm32f3 v0.12.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:542af8c9c691278ea8427c9f55ce1005b509eeebcbbcbc893145cd6832507671" "/opt/rustwide/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 281a7908e8f982c6ac4dcbcee05f27dd814263bbf1059253bc27c60445ec526d
[INFO] running `Command { std: "docker" "start" "-a" "281a7908e8f982c6ac4dcbcee05f27dd814263bbf1059253bc27c60445ec526d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "281a7908e8f982c6ac4dcbcee05f27dd814263bbf1059253bc27c60445ec526d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "281a7908e8f982c6ac4dcbcee05f27dd814263bbf1059253bc27c60445ec526d", kill_on_drop: false }`
[INFO] [stdout] 281a7908e8f982c6ac4dcbcee05f27dd814263bbf1059253bc27c60445ec526d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:542af8c9c691278ea8427c9f55ce1005b509eeebcbbcbc893145cd6832507671" "/opt/rustwide/cargo-home/bin/cargo" "+53709aedba198874ee50769f19f1e9ab00798bb5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92b88240f9c2c98d8f832a6515b5de87e1457b85b39f8a57c72d3e70bd403771
[INFO] running `Command { std: "docker" "start" "-a" "92b88240f9c2c98d8f832a6515b5de87e1457b85b39f8a57c72d3e70bd403771", kill_on_drop: false }`
[INFO] [stderr]     Checking nb v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling cortex-m v0.7.2
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]     Checking vcell v0.1.3
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]     Checking generic-array v0.13.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking nb v0.1.3
[INFO] [stderr]     Checking volatile-register v0.2.0
[INFO] [stderr]     Checking embedded-hal v0.2.5
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]     Checking bitfield v0.13.2
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking as-slice v0.1.5
[INFO] [stderr]    Compiling cortex-m v0.6.7
[INFO] [stderr]    Compiling cortex-m-rt v0.6.13
[INFO] [stderr]    Compiling cast v0.2.5
[INFO] [stderr]     Checking aligned v0.3.4
[INFO] [stderr]     Checking r0 v0.2.2
[INFO] [stderr]    Compiling stm32-usbd v0.5.1
[INFO] [stderr]    Compiling stm32f3 v0.12.1
[INFO] [stderr]     Checking usb-device v0.2.8
[INFO] [stderr]     Checking embedded-dma v0.1.2
[INFO] [stderr]     Checking micromath v1.1.1
[INFO] [stderr]     Checking generic-array v0.11.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling paste v1.0.5
[INFO] [stderr]    Compiling stm32f3-discovery v0.6.0
[INFO] [stderr]     Checking accelerometer v0.12.0
[INFO] [stderr]     Checking lsm303dlhc v0.2.0
[INFO] [stderr]     Checking switch-hal v0.3.2
[INFO] [stderr]     Checking panic-itm v0.4.2
[INFO] [stderr]     Checking lsm303agr v0.1.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rtcc v0.2.0
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.1.8
[INFO] [stderr]     Checking stm32f3xx-hal v0.6.1
[INFO] [stderr]     Checking stm32f3disco_mvp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `dma::ReadBuffer`
[INFO] [stdout]  --> src/main.rs:9:66
[INFO] [stdout]   |
[INFO] [stdout] 9 | use hal::{pac, prelude::*, stm32, serial::Serial, rcc, i2c::I2c, dma::ReadBuffer};
[INFO] [stdout]   |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `dma::ReadBuffer`
[INFO] [stdout]  --> src/main.rs:9:66
[INFO] [stdout]   |
[INFO] [stdout] 9 | use hal::{pac, prelude::*, stm32, serial::Serial, rcc, i2c::I2c, dma::ReadBuffer};
[INFO] [stdout]   |                                                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute
[INFO] [stdout]  --> src/main.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![cfg_attr(not(test), no_std)]
[INFO] [stdout]   |                        ^^^^^^ help: remove this attribute
[INFO] [stdout]   |
[INFO] [stdout] note: attribute also specified here
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![no_std]
[INFO] [stdout]   | ^^^^^^^^^^
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_measurements`
[INFO] [stdout]    --> src/main.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |     let max_measurements = 1000;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_measurements`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rx`, `rx_cahnnel`, and `delay` are never read
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct IOStruct {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 24 |     tx: hal::serial::Tx<stm32::USART1>,
[INFO] [stdout] 25 |     rx: hal::serial::Rx<stm32::USART1>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 26 |     tx_channel: hal::dma::dma1::C4,
[INFO] [stdout] 27 |     rx_cahnnel: hal::dma::dma1::C5,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 28 |     delay: hal::delay::Delay,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `destruct_RCC` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 | ...   let pac::Peripherals { RCC: destruct_RCC, DMA1: destruct_DMA1, FLASH: destruct_FLASH, GPIOA: destruct_gpioa, GPIOB: destruct_gpiob,...
[INFO] [stdout]    |                                   ^^^^^^^^^^^^ help: convert the identifier to snake case: `destruct_rcc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `destruct_DMA1` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:57
[INFO] [stdout]    |
[INFO] [stdout] 37 | ...   let pac::Peripherals { RCC: destruct_RCC, DMA1: destruct_DMA1, FLASH: destruct_FLASH, GPIOA: destruct_gpioa, GPIOB: destruct_gpiob,...
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^ help: convert the identifier to snake case: `destruct_dma1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `destruct_FLASH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:79
[INFO] [stdout]    |
[INFO] [stdout] 37 | ... DMA1: destruct_DMA1, FLASH: destruct_FLASH, GPIOA: destruct_gpioa, GPIOB: destruct_gpiob, .. } = device_periphs;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `destruct_flash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `max_measurements`
[INFO] [stdout]    --> src/main.rs:155:9
[INFO] [stdout]     |
[INFO] [stdout] 155 |     let max_measurements = 1000;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_max_measurements`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `rx`, `rx_cahnnel`, and `delay` are never read
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct IOStruct {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 24 |     tx: hal::serial::Tx<stm32::USART1>,
[INFO] [stdout] 25 |     rx: hal::serial::Rx<stm32::USART1>,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 26 |     tx_channel: hal::dma::dma1::C4,
[INFO] [stdout] 27 |     rx_cahnnel: hal::dma::dma1::C5,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 28 |     delay: hal::delay::Delay,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `destruct_RCC` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:37
[INFO] [stdout]    |
[INFO] [stdout] 37 | ...   let pac::Peripherals { RCC: destruct_RCC, DMA1: destruct_DMA1, FLASH: destruct_FLASH, GPIOA: destruct_gpioa, GPIOB: destruct_gpiob,...
[INFO] [stdout]    |                                   ^^^^^^^^^^^^ help: convert the identifier to snake case: `destruct_rcc`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `destruct_DMA1` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:57
[INFO] [stdout]    |
[INFO] [stdout] 37 | ...   let pac::Peripherals { RCC: destruct_RCC, DMA1: destruct_DMA1, FLASH: destruct_FLASH, GPIOA: destruct_gpioa, GPIOB: destruct_gpiob,...
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^ help: convert the identifier to snake case: `destruct_dma1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `destruct_FLASH` should have a snake case name
[INFO] [stdout]   --> src/main.rs:37:79
[INFO] [stdout]    |
[INFO] [stdout] 37 | ... DMA1: destruct_DMA1, FLASH: destruct_FLASH, GPIOA: destruct_gpioa, GPIOB: destruct_gpiob, .. } = device_periphs;
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `destruct_flash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.68s
[INFO] running `Command { std: "docker" "inspect" "92b88240f9c2c98d8f832a6515b5de87e1457b85b39f8a57c72d3e70bd403771", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92b88240f9c2c98d8f832a6515b5de87e1457b85b39f8a57c72d3e70bd403771", kill_on_drop: false }`
[INFO] [stdout] 92b88240f9c2c98d8f832a6515b5de87e1457b85b39f8a57c72d3e70bd403771